Which of the following describes PCR( Polymerase Chain Reaction)? I. Domino effect of growing DNA strands II.An enzyme used to destory DNA fragments III.An enzyme being used to quickly make copies of the DNA IV An enzyme that cuts double stranded DNA
Restriction enzymes (or restriction endonucleases) are used to cut DNA into smaller fragments. The cuts are always made at specific nucleotide sequences. Different restriction enzymes recognise and cut different DNA sequences.
